Hello jonal,

        I will list down some best colleges for chemical engineering in Tamil nadu. 

1. IIT Chennai, Tamil Nadu

 2. Algappa College of Technology, Tamil Nadu

3. SRM College of Engineering, Kattankulathur, Tamil Nadu

4. Bharathiha University, Coimbatore Institute of Technology, Tamil Nadu
 

5. MGR Engineering College, Chennai, Tamil Nadu

6. College of Engineering, Guindi, Chennai, Tamil Nadu

7. ES Engineering College, Erode, Tamil Nadu

8. Adhiparasakthi College of Engineering, Tamil Nadu

9. Arulmigu Meenakshi Amman College of Engineering

10. PSG College of Technology, Coimbatore 

11. National Institute of Technology, Tiruchirapalli.

Hope it can help you.

Thank you